---
id: CVE-2026-18151
title: >-
  IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to
  obtain sensitive information due to a race condition during the WebSocket
  handshake process.
summary: >-
  IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to
  obtain sensitive information due to a race condition during the WebSocket
  handshake process.
severity: medium
cvss: 4.2
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-362
vendor: IBM
product: i
affected:
  - i 7.6
  - i 7.5
  - i 7.4
  - i 7.3
published: '2026-09-14'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T19:22:22.797'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18151'
references:
  - url: 'https://www.ibm.com/support/pages/node/7286974'
    label: psirt@us.ibm.com
tags:
  - nvd
  - cve.org
epss: 0.0014
epssPercentile: 0.03751
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T19:07:12.412914Z'
ingestedAt: '2026-09-14T19:13:23.469Z'
---

## Overview

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to obtain sensitive information due to a race condition during the WebSocket handshake process.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.